He says if nothing is done then this generation of Australians is at risk of becoming the first generation not to live longer than their parents.

The WHO recommends for optimal health no more than six teaspoons of added sugar should be consumed in one day.

Current data suggests the average Australian consumes an average 14 to 16 teaspoons of added sugar a day, with teenagers consuming more than 20 teaspoons.

One simple simple food swap to reach the Sugar By Half target is swapping juice or soft drink with water, says Brukner.

Brukner admits the causes of obesity are complex and has also called for improved food labelling and moves to make it harder to market junk food to kids.

AAP

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